Hydrocarbon-burner.



` PATENTED sEPT.15,19os. J. E. BANGRo-FT. l `HYD ROCARBQBT BURNER.APPLIUAFHGN FILED APB. 22, 1903.

No. 738,755. y

NMODEL.

5 www m. 4.

No. "738,7L55.

liatented September 15, 190g.`

PATENT OFFICE.

JAMES E. BANCROFT, OF TOLEDO, OHIO.

HYDROCARBON-BURNER.

`SIPEGIFIGA'IIZION forming part o f Letters PatentNo. 738,7 55, datedSeptember 15, 1903.

Application filed April 22, 1903. Serial No. 153,730. (No model.)

To a/ZZ whom it may concern.-

The object of myinvention is accomplished' y as hereinafter described,and illustrated in the drawings, in Which- Figure 1 is a part sectionand part elevation of a burner constructed in accordance with myinvention. Fig. 2 is an elevation of the `grooved plug, showing the slotfor the valve- A stem.

The body l of the burner is arranged in elongated form and provided witha conical bore 2, extending axially through the bodyfrom end to end. Theburner-body is also provided with integral bosses 3 and 4, which arelocated diametrically opposite each other some distance inward from thesmall end 5. Within the boss 3 there is formedl a chamber 6, the bottomof which is arranged to seat a needle-valve 7, which is adapted tocontrol the outlet-port S, extending outward from chamber 6. Theneedle-valve is threaded in the boss 4, the free end of which isthreaded to receive a packing-gland 9. Within the bore of theburner-body there is housed a plug 10, conforming to the conicalformation of the bore and having a groove 1l of suitable width anddepth. The groove extends in the form of a helix fromthe large end tothe small end of the plug, and when inserted into the conical bore theplug 10 and the body 1 jointlyform a duct 12,which, being in the form ofa helix, is therefore adapted to expose a considerable column of liquidhydrocarbon `to heat for vaporization without materially increasing thesize of the burner.

Valve-chamber 6 is located between two coils of the helix, and as thegroove 11 is extended beyond the valve chamber 6 the groove 11 isreturned to the chamber 6 to form av duct 13, intersecting chamber 6, asshown in Fig. 1. The pitch of the helix is also altered aroundvalve-chamber 6 Vto provide the plug with a diametri@ slot 14 withoutintersecting the groove l1. The diametrically-reduced portion 15 of thevalve-stem is extended through the slot, and to allow for adjustablemovement of the plug the slot 14 is slightly elongated lengthwise of theplug.

The plug 10 is drawn and held in position within the boie2 by means of anut 16, run upon the threaded end 17 of the plug 10, and to prevent theplug lO from turning while the `threaded end 17 is drawn into the nut 16the large end of the plug 10 is preferably provided with a squaredshoulder 18 for applying a wrench thereto to hold .the plug. To attachthe burner to a supply-pipe 19, the body portion l is preferablyprovided with an integral squared section 2O and an integral coupling21.

A burner thus constructed and coupled to a supply-pipe will rapidlyvaporize hydrocarbons within the duct 12, and by detaching the burnerfrom the supply-pipe and removing the needle-valve the conical plug 10may be readily withdrawn from the body l and the groove quickly cleanedfrom deposits and sediment produced by vaporizing liquid hydrocarbons.The plug lO may be grooved in any suitable manner without departing fromthe spirit of my invention.

What I claim as my invention, and desire to secure by Letters Patent, is

In a hydrocarbon burner, an elongated burner-body arranged in the formof a tube having a contracted end and an outlet-port formed near thecontracted end of the tube provided with a valve extending diametricallythrough the body, a plug inserted `into the body and coupled thereto atthe contractedend and slotted diametricallytoreceive the valve, achannel formed upon the surface of the plug extending from the largeend, in

helical direction, toward the small end, With the coils of the helicalgroove arranged to clearthe slot for the valve and connect in thereverse direction with the outlet-port, and 5 means to couple asupply-pipe to the burnerloody.

In testimony whereof I have signed my JAMES E. BANCROFT.

Witnesses:

WM. K. TERRY, EMIL HABERSTOCK.

